CN211113607U

CN211113607U - Prestressed concrete cross solid pile

Info

Publication number: CN211113607U
Application number: CN201921468247.0U
Authority: CN
Inventors: 邱振贵; 李龙
Original assignee: Guangdong Sanhe Pile Co Ltd
Current assignee: Guangdong Sanhe Pile Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-07-28
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a prestressed concrete cross solid pile, which comprises a concrete cross solid pile body and a reinforcement cage arranged in the concrete cross solid pile body, wherein four corners of the concrete cross solid pile body are cut off to form a concave section, so that the cross section of the concrete cross solid pile is in a cross shape, four chamfers are arranged on the concave section, and the cross section reinforcement of the reinforcement cage is in a closed polygonal shape; the cross-shaped solid concrete pile body is cross-shaped, so that the consumption of concrete mixing materials can be greatly reduced under the condition of not reducing the contact area between the cross-shaped solid concrete pile body and a soil layer, and the cross-shaped solid concrete pile is convenient to construct and transport; meanwhile, the reinforcing bars are relatively reduced, under the condition of meeting the requirement of the minimum reinforcing bar ratio, the reinforcing bar cages are various in shape, the reinforcing bars and the cages are convenient to arrange, and the mechanical properties of the prestressed main reinforcing bars and the concrete are fully exerted, so that the aims of saving energy and materials and reducing the construction cost are fulfilled.

Description

Prestressed concrete cross solid pile

Technical Field

The utility model relates to a building material field, in particular to cross solid pile of prestressed concrete.

Background

The existing foundation treatment engineering field mainly comprises precast piles such as interlocking piles, hollow square piles, tubular piles and the like which are commonly used for foundation treatment, and the single piles have large integral weight and are suitable for foundation engineering with higher requirements on various mechanical properties.

For precast piles such as interlocking piles, hollow square piles, tubular piles and the like, if the precast piles are used for temporary foundation treatment engineering, the construction cost is high, the construction is relatively inconvenient, the excellent mechanical properties of the precast piles cannot be fully exerted, and therefore unnecessary waste is caused.

Aiming at the cross-shaped pile, the cross-shaped pile foundation bearing platform disclosed in the publication CN201220605935.9 is characterized in that the bearing platform surface is in a cross shape, a plurality of reinforcing ribs are arranged in parallel in the horizontal direction and the thickness direction of the bearing platform surface in the bearing platform surface to ensure the strength of the base bearing platform, but the chamfer angle is not considered to be arranged on the bearing platform surface, so that the difficulty is caused in production and mold stripping.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a cross solid pile of prestressed concrete that the application face is extensive, resistance to compression and antitorque shear performance is superior, when can energy-conservation economize material, reduce engineering cost, improve construction quality.

According to the embodiment of the first aspect of the utility model, the prestressed concrete cross solid pile is provided, including the concrete cross solid pile body, the four corners of the concrete cross solid pile body are cut off to form the concave section, so that the cross section of the concrete cross solid pile body is in a cross shape, and four chamfers are arranged at the concave section of the concrete cross solid pile body; and the reinforcing cage is arranged in the concrete cross solid pile body, and the cross section reinforcing steel bar of the reinforcing cage is in a closed circular shape or a polygonal shape.

Has the advantages that: the cross-shaped solid concrete pile body is cross-shaped, so that the consumption of concrete mixing materials can be greatly reduced under the condition of not reducing the contact area between the cross-shaped solid concrete pile body and a soil layer, and the cross-shaped solid concrete pile is convenient to construct and transport; meanwhile, the reinforcing bars are relatively reduced, under the condition of meeting the requirement of the minimum reinforcing bar ratio, the reinforcing bar cages are various in shape, the reinforcing bars and the cages are convenient to be arranged, and the mechanical properties of the prestressed main reinforcing bars and the concrete are fully exerted, so that the cross-shaped concrete solid pile has the characteristics of wide application range, energy conservation, material saving, reduction in construction cost and good mechanical properties.

According to the utility model discloses first aspect embodiment prestressed concrete cross solid pile, the steel reinforcement cage adopts the symmetry arrangement of reinforcement, is symmetrical in the axis of the cross solid pile body of concrete for the steel reinforcement cage is more balanced to the constraining force of the cross solid pile of concrete.

According to the utility model discloses first aspect embodiment the cross solid pile of prestressed concrete, steel reinforcement cage's cross-section reinforcement shape adopts squarely or hexagon, sets up the cross-section reinforcement of different shapes for the convenience of reinforcement and compile the cage, also can suitably increase the quantity and the increase cross sectional dimension of prestressing force owner muscle simultaneously.

According to the utility model discloses first aspect embodiment prestressed concrete cross solid pile, set up recess and tongue on the left bead of the transverse direction in the concrete cross solid pile body and the right bead respectively.

According to the utility model discloses first aspect embodiment the cross solid pile of prestressed concrete, tongue or recess on the cross solid pile body of concrete and adjacent cross solid pile body upper groove of concrete or tongue concatenation to reach the reinforcement effect.

According to the utility model discloses first aspect embodiment prestressed concrete cross solid pile, the cross-sectional shape of recess and tongue is semi-circular to reach better atress effect.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic view of a reinforcing bar with a hexagonal cross section of a reinforcement cage in an embodiment of the present invention;

fig. 2 is a schematic view of a reinforcement with a circular cross section of a reinforcement cage according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a reinforcement with a square cross section of a reinforcement cage in an embodiment of the present invention;

fig. 4 is a schematic diagram of reinforcement with square cross section of a plurality of welding spots of the reinforcement cage in the embodiment of the present invention;

fig. 5 is a schematic view of the reinforcing bars on the cross-section of the square concrete solid pile with convex grooves and concave grooves in the embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, a prestressed concrete cross solid pile is provided, which includes a concrete cross solid pile body 10 and a reinforcement cage 20 disposed in the concrete cross solid pile body, four corners of the concrete cross solid pile body 10 are cut to form concave sections, so that the cross section of the concrete cross solid pile body 10 is in a cross shape, four chamfers are disposed on the concave sections of the concrete cross solid pile body 10, and the cross section reinforcement of the reinforcement cage 20 is in a closed polygonal shape.

The cross section of the concrete cross-shaped solid pile body 10 is designed to be cross-shaped, so that the using amount of concrete mixing materials can be greatly reduced under the condition that the contact area between the concrete cross-shaped solid pile body and a soil layer is increased without reducing, and simultaneously, the number of reinforcing bars is relatively reduced, the mechanical properties of prestressed main reinforcing bars and concrete can be fully exerted under the condition that the requirement of the minimum reinforcing bar ratio is met, the construction and the transportation are convenient, and the purposes of saving energy and materials and reducing the construction cost are achieved; the shape of the reinforcement cage 20 is various, the main purpose is to facilitate reinforcement arrangement and cage weaving, the number of prestressed main reinforcements and the section size can be increased properly, and the chamfer angle is arranged on the concave section to overcome the defect of the existing mold, so that the mold is convenient to produce and the reinforcement distribution is convenient.

The utility model discloses the mill's production methods of product is the same with the solid square pile of prestressed concrete to the great majority, at first according to the ratio unloading of concrete, stir, and simultaneously, it carries out the seam welding to prestressed reinforcement in the cage workshop to compile, the shape of steel reinforcement cage 20 can be multiple shapes such as circular or polygon, the polygon can be square, it carries out the cloth to compile after the cage in putting into the good pipe die of transformation with it, stretch-draw, then the die filling, the cover mould, it is closely knit to vibrate the concrete to confirm its vibration mode according to the working property of concrete mixture, then carry out steam curing and autoclave curing to it, put at last, the drawing of patterns.

Further, in the design process, the application scenario of the concrete cross-shaped solid pile can be determined according to the transverse length or the vertical width of the concrete cross-shaped solid pile body 10. For example, a concrete cross-shaped solid pile with a small cross-sectional dimension of about 250mm in side length can be used for ground engineering in the fields of photovoltaic power generation, municipal administration, industrial and civil buildings and the like, and a concrete cross-shaped solid pile with a larger cross-sectional dimension of about 450mm in side length can be used for foundation engineering mainly based on compression and torsional shear.

Preferably, the reinforcement cage 20 is symmetrically arranged on the axis of the concrete cross solid pile body 10, and after the concrete cross solid pile is poured, the reinforcement cage 20 is evenly distributed on two sides of the axis in the concrete cross solid pile, so that the constraint force of the reinforcement cage 20 on the concrete cross solid pile body 10 is more balanced, and the strength of the concrete cross solid pile body 10 is improved.

Preferably, the cross-section reinforcement of the reinforcement cage 20 is square, circular or hexagonal, the cross-section reinforcement with different shapes is provided for reinforcement and cage weaving, the number of the prestressed main reinforcements and the cross-section size can be increased properly to further enhance the strength of the concrete cross-shaped solid pile as long as the requirement of the minimum reinforcement ratio is met, and the specific shape is determined according to the cross-section size and the number of the reinforcements.

Preferably, a groove 11 and a convex groove 12 are respectively arranged on a left convex rib and a right convex rib in the transverse direction in the concrete cross-shaped solid pile body 10 to adapt to different application scenarios.

Preferably, the tongue 12 or the groove 11 of the concrete cross solid pile body 10 is spliced with the groove 11 or the tongue 12 of the adjacent concrete cross solid pile body 10, so as to achieve the reinforcing effect.

Preferably, the cross-sectional shapes of the grooves 11 and the convex grooves 12 are semicircular to achieve better stress effect.

Conventionally, the prestressed concrete cross-shaped solid pile is a square concrete cross-shaped solid pile without additionally arranging the convex groove 12 and the groove 11, and the type of concrete cross-shaped solid pile can be applied to the fields of photovoltaic power generation, municipal administration, industry, civil buildings and the like or used in temporary foundation treatment engineering, and the specific application needs to be judged according to the related mechanical properties.

And to the cross solid pile of prestressed concrete who is equipped with recess 11 and tongue 12, need select suitable the form of weaving the cage to guarantee the concatenation between its stake and the stake, the concatenation department is assisted with the water stopping measure, and the cross solid pile of this type concrete is applied to a novel fender pile in fields such as the reinforcement of river course lake river system revetment, municipal drainage canal, pier at harbour, irrigation and water conservancy, railway bridge road bed bank protection retaining soil and building foundation ditch enclosure.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Prestressed concrete cross solid pile, its characterized in that includes:

the concrete cross-shaped solid pile comprises a concrete cross-shaped solid pile body (10), wherein four corners of the concrete cross-shaped solid pile body (10) are cut off to form a concave section, so that the cross section of the concrete cross-shaped solid pile body (10) is in a cross shape, and four chamfers are arranged at the concave section of the concrete cross-shaped solid pile body (10);

the reinforcing cage (20) is arranged in the concrete cross-shaped solid pile body (10), and the cross-section reinforcing steel bar shape of the reinforcing cage (20) is a closed circular shape or a closed polygonal shape.

2. The prestressed concrete cross-shaped solid pile according to claim 1, wherein: the reinforcement cage (20) adopts symmetrical reinforcing bars and is symmetrical to the axis of the concrete cross-shaped solid pile body (10).

3. The prestressed concrete cross-shaped solid pile according to claim 2, wherein: the section reinforcement shape of the reinforcement cage (20) adopts a square shape.

4. The prestressed concrete cross-shaped solid pile according to claim 1, wherein: a left convex rib and a right convex rib in the transverse direction in the concrete cross-shaped solid pile body (10) are respectively provided with a groove (11) and a convex groove (12).

5. The prestressed concrete cross-shaped solid pile according to claim 4, wherein: the convex groove (12) or the groove (11) on the concrete cross-shaped solid pile body (10) is spliced with the groove (11) or the convex groove (12) on the adjacent concrete cross-shaped solid pile body (10).

6. The prestressed concrete cross-shaped solid pile according to claim 4, wherein: the cross sections of the grooves (11) and the convex grooves (12) are semicircular.